Added library gathering functionality to build scripts.  Added starts for the tile grabber and zoomer code.

Library gathering tested on Win7, should be sane in Linux land too.
Added build steps to README.
rdmd really cleans up the build scripts and makes life generally easier!
Corrected executable output location.

rdmd places the executable in the source directory instead of the working directory.  Not what I want.
Added configuration file and a logging service.

The logging service still needs to be able to write to disk, but that'll come when it's needed.

JSON is easy to bring in, as the parsing facilities are part of the standard lib, but it's not very forgiving syntax wise nor does it have nice automatic connections between variables and keys.  Ah well, works for now.